{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "276946864",
    "entityType": "User",
    "nonce": "0xcbf7febed52339a0f1478f50bf97662556fcce66a8c6a775507521b4dbb0f6ce",
    "signature": "0x8ea41fc0b5f4550a94428fdd766be1b6da151ab0a4ab5a0486c6d5f055eda98c3f14007f52b1c295d72d957587ad4513e4a1b0f87fe3bb24c7be78deb8107b2d1c",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}